How can i keep focused on the prize and not get sidetracked by catty women?

First pray for her and ask God to help you see past her issues and provide her help. God put us here to be salt and light to everyone and form what you said she needs some because she is jealous of you or she would not be trying so hard. As a Christian we are to fear no one except God. Understand your worth to God and your self esteem will not need any work because the God of the Universe loves you!